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Chemistry 2014 Final; Part 1

True/False
Indicate whether the statement is true or false.
 

 1. 
An aqueous solution of acids causes red litmus paper to turn blue.
 

 2. 
An acidic solution contains more hydroxide ions than hydrogen ions.
 

 3. 
Acids add flavor to many beverages and foods.
 

 4. 
Acid solutions taste bitter and basic solutions taste sour.
 

 5. 
Acids and bases have the ability to conduct electricity.
 

 6. 
Weak acids produce fewer ions than strong acids and cannot conduct electricity as well.
 

 7. 
A neutral solution contains more hydroxide ions than hydrogen ions.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 8. 
Calculate the hydrogen ion concentration of an aqueous solution, given the concentration of hydroxide ions is 1 ´ 10-5 M and the ion constant for water is 1 ´ 10-14.
a.
mc008-1.jpg
c.
mc008-3.jpg
b.
mc008-2.jpg
d.
mc008-4.jpg
 

 9. 
When acids react with metals, they produce _____ gas.
a.
hydrogen
c.
sulfur
b.
nitrogen
d.
oxygen
 

 10. 
A basic solution contains more _____ ions than hydrogen.
a.
oxygen
c.
hydroxide
b.
nitrogen
d.
sulfide
 

 11. 
A _____ is produced when a base accepts a hydrogen ion from an acid.
a.
conjugate acid
c.
acid
b.
conjugate base
d.
base
 

 12. 
What is the pH of blood, given the hydrogen ion concentration is 4.0 ´ 10-8 M?
a.
7.0
c.
7.4
b.
7.2
d.
7.6
 

 13. 
An acid that can donate only one hydrogen ion is called a _____ acid.
a.
monoprotic
c.
triprotic
b.
diprotic
d.
polyprotic
 

 14. 
In the Bronsted-Lowry model of acids and bases, a(n) _____ is a hydrogen donor and a(n) _____ is a hydrogen acceptor.
a.
acid, base
c.
conjugate acid, conjugate base
b.
base, acid
d.
conjugate base, conjugate acid
 

 15. 
Which model states that an acid is a substance that contains hydrogen and ionizes to produce hydrogen ions?
a.
Arrhenius
c.
Lewis
b.
Bronsted-Lowry
d.
Hydrogen
 

 16. 
What is the ph of 0.45 M of H2SO4?
a.
0.0045
c.
0.45
b.
0.045
d.
4.50
 

 17. 
What is the hydrogen ion concentration of 0.050 M H3PO4?
a.
0.015 M
c.
1.50 M
b.
0.15 M
d.
15.0 M
 

 18. 
A solution that contains equal concentrations of hydrogen and hydroxide ions is _____.
a.
an acid
c.
neutral
b.
a base
d.
ionized
 

 19. 
The pH scale allows scientists to define the acidity of a substance on a scale of _____.
a.
0-7
c.
1-7
b.
0-14
d.
1-14
 

 20. 
An acid that has more than one ionizable hydrogen atom is called a _____ acid.
a.
monoprotic
c.
triprotic
b.
diprotic
d.
polyprotic
 



 
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